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BD3813KS-E2

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2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Sound Processors for Home Theater Systems
5.1ch
Sound Processors
BD3813KS,BD3815KS
●Description
The BD3813KS and BD3815KS sound processors integrate a gain amp and volume/bass/treble controls on a single chip,
making them optimally suited for use in audio applications, such as AV receivers, home theater systems and mini-component
systems. Used in combination with the BD3812F, a 2ch volume IC, the units enable 6.1ch and 7.1ch operation.
In addition, utilization of a BiCMOS process ensures a wide dynamic range (129dB).
●Features
1) Wide dynamic range: 129dB (Tone Bypass, VOL=MUTE, IHF-A)
2) Independent 6 channels for Master Volume (0 to -95 dB, MUTE 1dB/Step)
Implementation of a resistance ladder type circuit reduces residual noise and shock sounds during switching.
3) Low current consumption achieved through utilization of BiCMOS processes
4) Maximum output voltage: 4.2Vrms (Vcc=7V, VEE=-7V, RL=10kΩ)
5) Built-in 5ch independent input gain amplifier - useful for amplifying input signals
6) Built-in 2ch output port
7) 2-wire serial control (for both 3.3V and 5V)
●Applications
AV receivers, home theater systems and mini-component systems
●Line up matrix
Parameter BD3813KS BD3815KS
Mode Selector Yes Yes
Input Gain 0 6 12dB 0 6 18dB
Volume 0 to -95dB 1dB/Step 0 to -95dB 1dB/Step
Bass, Treble 14dB 2dB/Step 14dB 2dB/Step
Number of Ports 2 2
Package SQFP56 SQFP56
No.10081EAT04
Technical Note
2/17
www.rohm.com
2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
BD3813KS,BD3815KS
●Absolute maximum ratings (Ta=25℃)
Parameter Symbol Ratings Unit
Power Supply Voltage
V
CC
7.5
*1
V
V
EE
-7.5
Input Signal Voltage V
IN
V
CC
+0.3 to VEE-0.3
V
Power Dissipation Pd
1000
*2
mW
Operating Temperature Range Topr
20 to 75
°C
Storage Temperature Range Tastg
55 to 125
°C
*1 Applying voltage only to the V
CC
side, even if within the specified power supply voltage range, may cause excessive
current to flow, resulting in permanent damage to the IC. Therefore, when starting up the power supplies, VEE and V
CC
should either be powered ON simultaneously, or VEE first, followed by V
CC
.
*2 Please note the derating characteristics above Ta=25℃: 10mW/℃ (Mounted on a 70mmx70mmx1.6mm sized board).
●Operating conditions
(Normal function at Ta=25℃)
Parameter Symbol
Ratings
Unit
Min. Typ. Max.
Operating Supply Voltage
V
CC
5 7 7.3
V
V
EE
-7.3 -7 -5
Technical Note
3/17
www.rohm.com
2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
BD3813KS,BD3815KS
●Electrical Characteristics
Ta=25℃, VCC=7V, VEE=-7V, f=1kHz, VIN=1Vrms, RL=10kΩ, Rg=600Ω
Input Gain=0dB, Master Volume=0dB, Bass bnd Treble=0dB, Unless otherwise noted.
Parameter Symbol
Limits
Unit Conditions
Min. Typ. Max.
Total Output
Circuit Current
VCC
IQ
― 10 20
mA No signal
VEE -20 -10 ―
Output Voltage Gain 1 Gv1 -2 0 2 dB Measure : Pin31, 29, 27, 25, 23, 21
Output Voltage Gain 2 Gv2 -2 0 2 dB Measure : Pin19
Total Harmonic Distortion
ratio 1
THD1 ― 0.004 0.05 %
Measure : Pin31, 29, 27, 25, 23, 21
BW=400～30kHz
Total Harmonic Distortion
ratio 2
THD2 ― 0.004 0.05 %
Measure : Pin19
BW=400～30kHz
Maximum Output Voltage 1 Vomax1 3.4 4.2 ― Vrms
Measure : Pin31, 29, 27, 25, 23, 21
THD=1%
Maximum Output Voltage 2 Vomax2 3.4 4.2 ― Vrms
Measure : Pin19
THD=1%
Output Noise Voltage 1 Vno1
― 2.0 12 µVrms
Measure : Pin 31,29
Rg=0Ω, Tone: ON, BW=IHF-A
― 1.5 8.0 µVrms
Measure : Pin 31,29
Rg=0Ω, Tone: By-pass, BW=IHF-A
Output Noise Voltage 2 Vno2 ― 1.5 8.0 µVrms
Measure : Pin 27,25,23,21
Rg=0Ω, BW=IHF-A
Output Noise Voltage 3 Vno3 ― 1.0 5.0 µVrms
Measure : Pin 19
Rg=0Ω, BW=IHF-A
Crosstalk between Channels
RchLch
CTCRL ― -95 -80 dB
Measure : Pin29(OUTFL)
Rg=0Ω, BW=IHF-A
Reference : Pin31(OUTFR)=1Vrms
Crosstalk between Channels
LchRch
CTCLR ― -95 -80 dB
Measure : Pin31(OUTFR)
Rg=0Ω, BW=IHF-A
Reference : Pin29(OUTFL)=1Vrms
Crosstalk between Selectors
DVD
CTSA ― -95 -80 dB
Measure : Pin 31,29,27,25,
23,21,19
Rg=0Ω, BW=IHF-A
Crosstalk between Selectors
D/A
CTSB ― -95 -80 dB
Measure : Pin 31,29,27,25,
23,21,19
Rg=0Ω, BW=IHF-A
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BD3813KS-E2

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Audio Amplifiers 10V-14.6V 2-wire BASS, Treble
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